Generally speaking, the sample passes through the electromagnetic induction channel of needle detector. After detecting the metal substance, the electronic integrated control system receives the signal, and after processing, outputs an alarm signal and drives the device conveyor belt to return the detection sample.
Hand held needle detector, using the principle of magnetic field, can accurately detect the specific location of ferromagnetic metal impurities such as broken needles, which is very suitable for the inspection of thin and small items. It is also suitable for the detection of large needle detectors.
